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NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · stand stability · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical..0.41006.82314.5155.32527.011
less stable6.9234.92647.2884.8649.67193.44
stable12.8167.42246.9877.8637.99182.74
total19.71312.716100.95177.0392.84403.12
outside perimetercritical4.4295.3267.22210.1181.74528.611
less stable55.5780.1547.6852.0812.816247.93
stable116.14128.3449.0875.5612.117381.02
total176.02213.62103.84137.6426.511657.51
totalcritical4.4295.62514.11624.6127.02255.78
less stable62.4685.0594.85136.7462.36441.32
stable128.93135.7395.95153.3450.07563.72
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162937/149316

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedstand stability %± %± %± %± %± %± %±
inside perimetercritical1.11.17.31.66.71.99.82.27.02.05.71.46.70.7
less stable36.75.150.63.046.83.749.43.740.83.953.43.148.01.5
stable62.25.142.13.046.53.740.83.652.24.040.83.045.31.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimetercritical2.50.57.11.66.31.915.73.93.81.46.52.84.30.5
less stable34.91.448.23.143.53.925.84.636.83.648.15.837.81.1
stable62.71.544.73.150.24.058.55.259.43.645.55.857.91.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalcritical2.40.47.21.16.51.311.71.95.31.25.91.35.20.4
less stable35.01.449.42.245.32.741.73.038.62.652.22.741.70.9
stable62.61.443.42.248.22.746.63.056.12.741.92.753.10.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162938/149317

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · stand stability · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedstand stability1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimetercritical0.41007.2224.1286.2233.9305.32527.111
less stable11.81749.8828.81031.2922.51249.67193.74
stable20.01341.5828.61025.71028.81037.99182.64
total32.21098.4561.6663.1555.2692.84403.32
outside perimetercritical9.7196.5233.5314.8262.4381.74528.611
less stable135.9444.4824.0117.92023.51112.816248.43
stable244.3341.1927.61017.91337.9812.117380.92
total389.9192.0555.0630.6963.9626.511657.91
totalcritical10.01913.7167.62111.0176.3237.02255.68
less stable147.7494.1552.8739.1846.0762.36442.02
stable264.3282.6556.3643.6766.8650.07563.52
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162939/149318

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · stand stability · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability %± %± %±
Western Juracritical..2.70.82.40.7
less stable36.06.830.02.430.72.3
stable64.06.867.32.566.92.3
total100.0.100.0.100.0.
Eastern Juracritical..1.71.21.71.2
less stable25.021.736.64.536.24.4
stable75.021.761.74.662.14.5
total100.0.100.0.100.0.
Western Plateaucritical..2.91.62.61.5
less stable30.414.735.44.735.04.5
stable69.614.761.74.862.44.5
total100.0.100.0.100.0.
Central Plateaucritical..2.91.22.71.1
less stable33.313.639.23.438.93.3
stable66.713.657.93.458.43.3
total100.0.100.0.100.0.
Eastern Plateaucritical7.16.92.00.82.30.9
less stable50.013.437.12.837.72.8
stable42.913.260.92.960.12.8
total100.0.100.0.100.0.
Western Pre-Alpscritical5.12.97.73.76.32.3
less stable45.76.555.86.950.44.8
stable49.26.536.56.743.34.7
total100.0.100.0.100.0.
Central Pre-Alpscritical8.92.68.62.48.71.7
less stable50.04.544.34.247.03.1
stable41.14.447.14.244.33.1
total100.0.100.0.100.0.
Eastern Pre-Alpscritical5.22.24.22.04.71.5
less stable43.35.042.75.143.03.6
stable51.65.153.15.152.33.6
total100.0.100.0.100.0.
Northwestern Alpscritical6.72.63.22.25.21.8
less stable54.55.350.76.352.94.0
stable38.95.146.16.341.94.0
total100.0.100.0.100.0.
Central Alpscritical9.45.29.65.39.53.7
less stable37.78.646.98.942.36.2
stable53.08.843.58.848.26.3
total100.0.100.0.100.0.
Northeastern Alpscritical8.23.99.75.38.73.2
less stable59.27.141.98.952.55.6
stable32.76.748.49.038.75.5
total100.0.100.0.100.0.
Southwestern Alpscritical9.82.215.73.911.71.9
less stable49.43.725.84.641.73.0
stable40.83.658.55.246.63.0
total100.0.100.0.100.0.
Southeastern Alpscritical7.02.03.81.45.31.2
less stable40.83.936.83.638.62.6
stable52.24.059.43.656.12.7
total100.0.100.0.100.0.
Southern Alpscritical5.71.46.52.85.91.3
less stable53.43.148.15.852.22.7
stable40.83.045.55.841.92.7
total100.0.100.0.100.0.
Switzerlandcritical6.70.74.30.55.20.4
less stable48.01.537.71.141.60.9
stable45.31.557.91.153.10.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162940/149319

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · stand stability · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionstand stability1000 ha± %1000 ha± %1000 ha± %
Western Juracritical..3.6313.631
less stable6.42339.3845.78
stable11.41788.2499.64
total17.813131.03148.92
Eastern Juracritical..0.8700.870
less stable0.410016.61317.012
stable1.25728.0829.28
total1.64945.4347.03
Western Plateaucritical..1.2571.257
less stable1.25715.21416.513
stable2.83726.6929.48
total4.13143.1547.24
Central Plateaucritical..1.9401.940
less stable1.25025.5926.79
stable2.53537.6740.16
total3.72865.0368.72
Eastern Plateaucritical0.41002.1412.537
less stable2.53739.0841.58
stable2.14164.0566.15
total5.026105.12110.12
Western Pre-Alpscritical1.1571.5492.637
less stable10.01710.71720.710
stable10.8167.02117.812
total21.81019.21141.14
Central Pre-Alpscritical3.9304.3288.220
less stable22.21122.21144.57
stable18.31323.71142.07
total44.5750.2694.72
Eastern Pre-Alpscritical1.8441.4503.233
less stable15.01414.61429.69
stable17.91218.21236.17
total34.6834.3868.93
Northwestern Alpscritical2.1400.7712.935
less stable17.51311.41628.99
stable12.51510.41822.911
total32.1822.51154.74
Central Alpscritical1.0571.1582.140
less stable4.2285.2249.317
stable5.8224.82510.715
total11.01511.11522.18
Northeastern Alpscritical1.4491.1572.537
less stable10.4164.72615.013
stable5.7235.42411.116
total17.61111.11528.76
Southwestern Alpscritical6.2234.82611.017
less stable31.297.92039.18
stable25.71017.91343.67
total63.1530.6993.73
Southeastern Alpscritical3.9302.4386.323
less stable22.51223.51146.07
stable28.81037.9866.86
total55.2663.96119.03
Southern Alpscritical5.3251.7457.022
less stable49.6712.81662.36
stable37.9912.11750.07
total92.8426.511119.33
Switzerlandcritical27.21128.61155.88
less stable194.34248.63442.92
stable183.54381.82565.32
total404.92659.011063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162941/149320

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%....1.70.60.60.6..1.10.61.10.3
21-40%....4.40.94.21.610.02.71.90.83.90.6
41-60%3.82.61.61.613.81.630.93.639.24.58.31.716.41.1
61-80%20.75.622.25.230.82.138.83.835.84.428.92.831.11.4
over 80%75.45.976.25.449.22.325.43.415.03.359.73.047.51.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.70.61.20.41.20.51.21.20.70.6..1.20.3
21-40%1.50.62.00.54.61.011.13.511.02.51.31.33.60.4
41-60%8.51.35.20.918.41.926.84.927.93.620.64.612.40.8
61-80%25.62.020.61.633.12.332.95.241.04.025.75.027.11.0
over 80%62.72.271.01.842.72.428.05.019.43.252.45.755.71.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.50.51.10.41.50.40.80.60.40.40.90.51.20.2
21-40%1.30.51.80.54.50.76.51.610.61.91.70.73.70.3
41-60%8.01.24.90.815.91.229.62.932.82.811.11.713.90.6
61-80%25.11.920.81.531.81.636.83.138.72.928.22.428.60.8
over 80%64.02.171.41.746.21.726.32.817.52.358.12.752.60.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162942/149321

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....2.8350.3100..1.1584.229
21-40%....7.5222.4374.2281.84515.915
41-60%0.7710.410023.41217.51316.6147.92166.47
61-80%4.0304.92652.1821.91115.21427.411125.55
over 80%14.41517.01483.3614.4146.42356.67192.04
total19.11322.312169.2356.5642.4794.74404.12
outside perimeter0-20%2.9352.8351.8450.31000.4100..8.221
21-40%2.5384.6286.7233.1336.0240.410023.312
41-60%14.41512.01726.7117.52115.2145.72581.56
61-80%43.6847.7848.189.31922.3117.122178.04
over 80%106.64164.4362.177.92010.51814.515366.12
total170.12231.62145.3428.11054.3627.710657.21
total0-20%2.9352.8354.6280.7710.41001.15812.417
21-40%2.5384.62814.3165.52510.2182.14139.39
41-60%15.11512.41750.1825.01031.8913.616148.05
61-80%47.6852.77100.2531.1937.5834.59303.63
over 80%121.04181.43145.4422.21116.91471.15558.12
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162943/149322

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes) %± %± %±
AG0-20%..1.71.21.71.2
21-40%..4.11.84.11.8
41-60%..5.02.05.02.0
61-80%..14.03.214.03.2
over 80%..75.23.975.23.9
total..100.0.100.0.
AI0-20%......
21-40%......
41-60%11.110.8..6.76.6
61-80%44.416.9..26.711.8
over 80%44.416.9100.0.66.712.5
total100.0.100.0.100.0.
AR0-20%......
21-40%......
41-60%14.313.5..4.04.0
61-80%42.919.027.810.832.09.5
over 80%42.919.072.210.864.09.8
total100.0.100.0.100.0.
BE0-20%2.81.21.30.71.90.6
21-40%6.81.91.70.83.60.9
41-60%12.92.59.51.710.81.4
61-80%31.43.530.42.730.82.1
over 80%46.13.757.12.952.92.3
total100.0.100.0.100.0.
BL/BS0-20%..2.32.32.12.1
21-40%......
41-60%..4.73.34.33.0
61-80%..9.34.58.54.1
over 80%100.0.83.75.785.05.3
total100.0.100.0.100.0.
FR0-20%......
21-40%2.32.24.42.53.61.8
41-60%14.35.414.74.314.63.4
61-80%40.57.622.15.129.14.4
over 80%42.97.758.86.052.74.8
total100.0.100.0.100.0.
GE0-20%......
21-40%......
41-60%......
61-80%......
over 80%..100.0.100.0.
total..100.0.100.0.
GL0-20%5.35.2..2.42.4
21-40%..13.67.47.34.1
41-60%10.57.14.54.57.34.1
61-80%10.57.122.79.017.15.9
over 80%73.710.159.110.665.97.5
total100.0.100.0.100.0.
GR0-20%0.50.50.50.50.50.3
21-40%6.21.78.52.07.41.3
41-60%32.73.328.53.230.72.3
61-80%36.53.340.63.538.52.4
over 80%24.03.021.92.923.02.1
total100.0.100.0.100.0.
JU0-20%..1.51.51.21.2
21-40%......
41-60%..10.63.88.12.9
61-80%19.08.616.74.617.34.1
over 80%81.08.571.25.673.54.8
total100.0.100.0.100.0.
LU0-20%4.84.71.91.32.41.4
21-40%..1.01.00.80.8
41-60%14.37.715.33.515.23.2
61-80%19.08.638.54.835.24.3
over 80%61.910.643.34.946.44.5
total100.0.100.0.100.0.
NE0-20%..1.51.51.41.4
21-40%......
41-60%20.018.08.73.29.43.2
61-80%60.022.032.65.334.25.2
over 80%20.018.057.25.655.05.4
total100.0.100.0.100.0.
NW0-20%......
21-40%......
41-60%..9.18.95.95.8
61-80%16.715.527.313.723.510.5
over 80%83.315.363.614.870.611.3
total100.0.100.0.100.0.
OW0-20%..3.33.21.81.8
21-40%..3.63.62.02.0
41-60%8.75.921.57.815.75.1
61-80%52.210.532.28.941.27.0
over 80%39.110.239.49.339.36.9
total100.0.100.0.100.0.
SG0-20%..1.61.60.70.7
21-40%4.02.36.43.15.11.9
41-60%10.73.611.34.010.92.7
61-80%24.04.922.65.323.43.6
over 80%61.45.658.16.359.94.2
total100.0.100.0.100.0.
SH0-20%......
21-40%......
41-60%..2.82.82.82.8
61-80%..25.07.325.07.3
over 80%..72.27.672.27.6
total..100.0.100.0.
SO0-20%..1.31.31.21.2
21-40%..1.31.31.21.2
41-60%..2.51.82.41.7
61-80%..16.54.215.74.0
over 80%100.0.78.54.679.54.5
total100.0.100.0.100.0.
SZ0-20%......
21-40%5.63.85.73.95.62.8
41-60%5.63.831.47.918.34.6
61-80%27.87.520.06.824.05.1
over 80%61.18.142.98.452.16.0
total100.0.100.0.100.0.
TG0-20%..3.32.32.82.0
21-40%..1.71.71.41.4
41-60%..3.32.32.82.0
61-80%20.012.721.65.321.34.9
over 80%80.012.670.15.971.55.4
total100.0.100.0.100.0.
TI0-20%0.90.7..0.70.5
21-40%2.41.01.81.72.20.9
41-60%5.21.515.94.97.51.6
61-80%26.03.022.95.625.42.7
over 80%65.43.359.56.564.22.9
total100.0.100.0.100.0.
UR0-20%..5.25.12.32.3
21-40%4.14.15.25.14.63.2
41-60%16.67.622.29.719.16.1
61-80%20.78.336.311.127.66.8
over 80%58.610.131.110.646.47.7
total100.0.100.0.100.0.
VD0-20%..2.01.01.60.8
21-40%2.22.23.41.33.21.1
41-60%6.73.712.42.311.42.0
61-80%24.46.429.33.228.42.9
over 80%66.77.052.83.555.33.2
total100.0.100.0.100.0.
VS0-20%0.50.51.11.10.70.5
21-40%3.81.411.33.46.31.5
41-60%28.83.324.74.627.52.7
61-80%38.03.632.65.036.22.9
over 80%28.83.330.34.929.32.8
total100.0.100.0.100.0.
ZG0-20%11.110.8..7.77.7
21-40%......
41-60%11.110.825.022.415.410.4
61-80%22.214.3..15.410.4
over 80%55.617.075.022.461.514.0
total100.0.100.0.100.0.
ZH0-20%......
21-40%..2.91.42.81.4
41-60%..3.61.63.51.5
61-80%33.327.322.13.522.43.5
over 80%66.727.371.43.871.33.8
total100.0.100.0.100.0.
Switzerland0-20%1.10.31.20.31.20.2
21-40%3.90.63.60.43.70.3
41-60%16.31.112.40.813.90.6
61-80%31.01.426.71.028.30.8
over 80%47.71.456.11.152.90.9
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162944/149323

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
AG0-20%..0.8700.870
21-40%..2.0442.044
41-60%..2.4402.440
61-80%..6.8236.823
over 80%..36.6636.66
total..48.7248.72
AI0-20%......
21-40%......
41-60%0.3100..0.3100
61-80%1.345..1.345
over 80%1.3451.9343.222
total2.9241.9344.811
AR0-20%......
21-40%......
41-60%0.3100..0.3100
61-80%1.0551.6412.630
over 80%1.0554.2205.116
total2.2335.8148.05
BE0-20%1.7451.4503.133
21-40%4.1291.7455.924
41-60%7.9209.61917.513
61-80%19.11330.81049.97
over 80%28.01057.8685.95
total60.96101.34162.32
BL/BS0-20%..0.41000.4100
21-40%......
41-60%..0.8700.870
61-80%..1.6491.649
over 80%1.64914.61016.29
total1.64917.5819.16
FR0-20%......
21-40%0.41001.1571.550
41-60%2.2403.7306.023
61-80%6.4235.62412.015
over 80%6.72214.91321.710
total15.71325.4841.13
GE0-20%......
21-40%......
41-60%......
61-80%......
over 80%..2.2342.234
total..2.2342.234
GL0-20%0.4100..0.4100
21-40%..1.2571.257
41-60%0.8700.41001.257
61-80%0.8701.9432.736
over 80%5.4235.02410.414
total7.3198.51715.88
GR0-20%0.31000.31000.771
21-40%4.5275.92410.518
41-60%23.81119.91343.68
61-80%26.51128.31054.87
over 80%17.41315.31432.79
total72.6569.76142.33
JU0-20%..0.41000.4100
21-40%......
41-60%..2.7372.737
61-80%1.6494.3285.824
over 80%6.62218.31024.97
total8.21925.7733.93
LU0-20%0.31000.6700.957
21-40%..0.31000.3100
41-60%0.9575.0246.021
61-80%1.34912.61413.913
over 80%4.12714.21218.310
total6.62032.8539.33
NE0-20%..0.41000.4100
21-40%......
41-60%0.31002.2372.634
61-80%1.0578.4179.416
over 80%0.310014.71115.110
total1.64425.8527.44
NW0-20%......
21-40%......
41-60%..0.41000.4100
61-80%0.41001.2551.546
over 80%1.9402.7324.620
total2.3364.2226.513
OW0-20%..0.31000.3100
21-40%..0.41000.4100
41-60%0.7702.2393.033
61-80%4.5263.4317.817
over 80%3.4314.1277.518
total8.61610.41419.04
SG0-20%..0.41000.4100
21-40%1.1581.4502.537
41-60%2.9352.5375.425
61-80%6.5235.12611.616
over 80%16.61313.01529.78
total27.1922.41049.54
SH0-20%......
21-40%......
41-60%..0.41000.4100
61-80%..3.2293.229
over 80%..9.3119.311
total..12.8312.83
SO0-20%..0.41000.4100
21-40%..0.41000.4100
41-60%..0.8700.870
61-80%..4.9264.926
over 80%1.54923.5725.06
total1.54929.9431.44
SZ0-20%......
21-40%0.7700.7701.449
41-60%0.7704.0284.726
61-80%3.6302.5366.222
over 80%8.0185.42413.412
total13.01312.71325.75
TG0-20%..0.6700.670
21-40%..0.31000.3100
41-60%..0.6700.670
61-80%0.6703.9254.523
over 80%2.43412.61115.09
total3.03018.0621.04
TI0-20%0.771..0.771
21-40%1.8440.41002.141
41-60%4.0303.2337.222
61-80%19.7134.72724.311
over 80%49.4712.11661.56
total75.5520.41295.94
UR0-20%..0.31000.3100
21-40%0.31000.31000.770
41-60%1.3491.4502.735
61-80%1.7442.3364.027
over 80%4.7252.0396.620
total8.0176.42114.311
VD0-20%..1.5501.550
21-40%0.41002.6383.035
41-60%1.1589.51910.618
61-80%4.23022.31226.511
over 80%11.41740.2851.66
total17.11476.2493.23
VS0-20%0.31000.31000.771
21-40%2.4383.5315.924
41-60%18.2137.62125.810
61-80%24.01110.01834.09
over 80%18.2139.31927.410
total63.1530.6993.73
ZG0-20%0.4100..0.4100
21-40%......
41-60%0.41000.41000.968
61-80%0.968..0.968
over 80%2.1371.3533.425
total3.9211.7445.69
ZH0-20%......
21-40%..1.4491.449
41-60%..1.8441.844
61-80%0.410010.91611.316
over 80%0.77035.2636.06
total1.15749.3250.42
Switzerland0-20%4.2298.22112.517
21-40%15.71523.71239.49
41-60%66.0781.66147.55
61-80%125.15176.34301.43
over 80%192.84370.52563.22
total403.82660.211064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162945/149324

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %±
inside perimeter0-20%....1.10.61.20.51.10.71.00.3
21-40%....4.31.25.51.01.90.83.90.6
41-60%3.72.62.82.710.41.826.62.08.11.716.41.1
61-80%20.45.522.26.932.52.833.22.129.02.831.11.4
over 80%75.95.875.07.251.83.033.62.159.93.047.61.5
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.70.61.30.51.00.61.00.5..1.20.3
21-40%1.40.52.10.62.81.09.41.51.31.33.50.4
41-60%7.11.25.80.917.02.225.02.217.44.412.40.8
61-80%23.91.921.51.733.02.835.22.426.75.127.01.0
over 80%66.02.269.21.946.22.929.52.354.55.855.81.1
total100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.50.51.20.41.10.41.10.30.90.51.20.2
21-40%1.30.52.00.63.50.87.20.91.80.73.70.3
41-60%6.71.15.60.913.71.425.91.510.11.613.90.6
61-80%23.51.821.61.632.72.034.11.628.52.528.60.8
over 80%67.02.069.61.848.92.131.81.558.72.752.70.9
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162946/149325

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%....1.1582.1411.1584.229
21-40%....4.3299.7191.84515.815
41-60%0.7710.410010.51847.087.52166.07
61-80%4.0302.83532.81058.8726.911125.35
over 80%15.0159.51952.3759.4755.67191.74
total19.71312.716100.95177.0392.84403.12
outside perimeter0-20%2.9352.8351.1581.450..8.221
21-40%2.5384.6272.93512.9160.410023.212
41-60%12.41712.31617.71434.4104.62781.36
61-80%42.0846.0834.21048.487.122177.84
over 80%116.14147.9347.9840.5914.515367.02
total176.02213.62103.84137.6426.511657.51
total0-20%2.9352.8352.2413.5321.15812.417
21-40%2.5384.6277.22222.6122.14139.09
41-60%13.11612.61628.11181.4612.117147.45
61-80%46.0848.8867.06107.2534.09303.13
over 80%131.13157.43100.25100.0570.05558.72
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162947/149326

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes) %± %± %± %± %± %± %±
inside perimeter0-20%..2.20.91.10.80.50.5..1.10.71.10.3
21-40%..5.11.33.61.53.81.48.32.21.90.84.00.6
41-60%3.31.912.82.010.72.328.83.336.93.98.11.716.41.1
61-80%21.14.333.32.925.23.338.03.635.03.829.02.831.11.4
over 80%75.54.546.53.059.43.728.83.319.73.259.93.047.41.4
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeter0-20%1.50.41.20.71.30.91.11.10.60.5..1.20.3
21-40%1.80.43.11.16.31.911.33.49.32.21.31.33.50.4
41-60%6.30.719.62.514.72.824.74.629.13.417.44.412.40.8
61-80%22.61.336.93.023.83.432.65.040.73.626.75.127.11.0
over 80%67.81.439.23.153.94.030.34.920.33.054.55.855.71.1
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
total0-20%1.40.31.70.61.20.60.70.50.30.30.90.51.20.2
21-40%1.70.44.20.94.91.26.31.58.81.51.80.73.70.3
41-60%6.10.716.11.612.61.827.52.732.72.610.11.613.90.6
61-80%22.51.235.02.124.62.336.22.938.12.628.52.528.60.8
over 80%68.41.443.02.256.82.729.32.820.02.258.72.752.60.9
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162948/149327

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assigneddegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeter0-20%..2.2410.7710.3100..1.1584.329
21-40%..5.1272.2412.4384.6271.84516.015
41-60%1.15812.6166.62218.21320.4127.52166.37
61-80%6.82332.81015.51424.01119.31326.911125.45
over 80%24.31245.8836.6818.21310.91755.67191.34
total32.21098.4561.6663.1555.2692.84403.32
outside perimeter0-20%5.7251.1580.7710.31000.4100..8.221
21-40%7.2222.9353.5313.5316.0240.410023.312
41-60%24.71218.0148.1217.62118.6134.62781.66
61-80%88.0633.91013.11510.01826.0117.122178.14
over 80%264.3236.1929.7109.31912.91614.515366.72
total389.9192.0555.0630.6963.9626.511657.91
total0-20%5.7253.2331.4500.7710.41001.15812.517
21-40%7.2227.9215.7255.92410.5182.14139.39
41-60%25.81130.71014.71525.71039.0812.117147.95
61-80%94.8666.7628.71034.0945.4734.09303.43
over 80%288.6281.9566.2527.41023.81170.05558.02
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162949/149328

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes) %± %± %±
Western Jura0-20%..1.40.61.20.5
21-40%..1.70.71.50.6
41-60%4.12.87.91.47.41.3
61-80%22.05.926.72.326.22.2
over 80%73.96.262.32.563.72.4
total100.0.100.0.100.0.
Eastern Jura0-20%..2.61.52.51.4
21-40%..0.90.90.80.8
41-60%..4.41.94.21.8
61-80%..14.83.314.33.2
over 80%100.0.77.43.978.13.8
total100.0.100.0.100.0.
Western Plateau0-20%..2.91.62.61.5
21-40%..1.91.31.71.2
41-60%..10.53.09.62.8
61-80%30.414.724.74.225.24.1
over 80%69.614.760.04.860.84.6
total100.0.100.0.100.0.
Central Plateau0-20%..1.40.81.40.8
21-40%..1.00.70.90.6
41-60%8.38.05.71.65.91.6
61-80%25.012.523.02.923.12.8
over 80%66.713.668.93.268.83.1
total100.0.100.0.100.0.
Eastern Plateau0-20%..0.70.50.60.5
21-40%..3.11.02.91.0
41-60%..4.11.23.91.1
61-80%14.39.419.42.319.22.2
over 80%85.79.372.82.673.42.5
total100.0.100.0.100.0.
Western Pre-Alps0-20%1.71.7..0.90.9
21-40%8.43.65.83.37.22.5
41-60%18.75.123.05.920.73.9
61-80%32.36.127.06.229.84.4
over 80%39.06.444.26.941.44.7
total100.0.100.0.100.0.
Central Pre-Alps0-20%0.80.81.41.01.10.7
21-40%3.21.61.41.02.30.9
41-60%8.12.418.63.313.62.1
61-80%37.14.341.44.239.43.0
over 80%50.84.537.14.143.63.1
total100.0.100.0.100.0.
Eastern Pre-Alps0-20%1.01.01.01.01.00.7
21-40%3.11.83.11.83.11.3
41-60%8.22.811.53.39.82.1
61-80%26.84.524.04.425.43.1
over 80%60.85.060.45.060.63.5
total100.0.100.0.100.0.
Northwestern Alps0-20%4.42.21.61.63.31.4
21-40%5.62.44.82.75.21.8
41-60%15.63.819.05.017.03.0
61-80%28.94.834.96.031.43.8
over 80%45.55.239.86.243.24.0
total100.0.100.0.100.0.
Central Alps0-20%..3.13.11.61.6
21-40%3.13.16.24.34.72.6
41-60%12.55.928.58.020.55.1
61-80%18.76.928.08.023.35.3
over 80%65.78.434.28.449.96.3
total100.0.100.0.100.0.
Northeastern Alps0-20%2.02.0..1.21.2
21-40%4.12.816.16.68.83.2
41-60%14.35.09.75.312.53.7
61-80%26.56.319.47.123.84.8
over 80%53.07.254.89.053.75.6
total100.0.100.0.100.0.
Southwestern Alps0-20%0.50.51.11.10.70.5
21-40%3.81.411.33.46.31.5
41-60%28.83.324.74.627.52.7
61-80%38.03.632.65.036.22.9
over 80%28.83.330.34.929.32.8
total100.0.100.0.100.0.
Southeastern Alps0-20%..0.60.50.30.3
21-40%8.32.29.32.28.81.5
41-60%36.93.929.13.432.72.6
61-80%35.03.840.73.638.12.6
over 80%19.73.220.33.020.02.2
total100.0.100.0.100.0.
Southern Alps0-20%1.10.7..0.90.5
21-40%1.90.81.31.31.80.7
41-60%8.11.717.44.410.11.6
61-80%29.02.826.75.128.52.5
over 80%59.93.054.55.858.72.7
total100.0.100.0.100.0.
Switzerland0-20%1.10.31.30.31.20.2
21-40%3.90.63.60.43.70.3
41-60%16.41.112.40.813.90.6
61-80%31.11.427.01.028.60.8
over 80%47.51.455.71.152.60.9
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162950/149329

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · degree of cover (aerial photo, 5 classes) · economic region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regiondegree of cover (aerial photo, 5 classes)1000 ha± %1000 ha± %1000 ha± %
Western Jura0-20%..1.8451.845
21-40%..2.2412.241
41-60%0.77110.41811.117
61-80%3.93035.0938.98
over 80%13.21681.7594.94
total17.813131.03148.92
Eastern Jura0-20%..1.2571.257
21-40%..0.41000.4100
41-60%..2.0442.044
61-80%..6.7236.723
over 80%1.64935.1636.76
total1.64945.4347.03
Western Plateau0-20%..1.2571.257
21-40%..0.8700.870
41-60%..4.5294.529
61-80%1.25710.71811.917
over 80%2.83725.8928.78
total4.13143.1547.24
Central Plateau0-20%..0.9570.957
21-40%..0.6710.671
41-60%0.31003.7284.027
61-80%0.95714.91315.913
over 80%2.53544.8547.25
total3.72865.0368.72
Eastern Plateau0-20%..0.7710.771
21-40%..3.2333.233
41-60%..4.3284.328
61-80%0.77120.41221.112
over 80%4.32876.5480.84
total5.026105.12110.12
Western Pre-Alps0-20%0.4100..0.4100
21-40%1.8441.1572.935
41-60%4.1294.4288.519
61-80%7.0215.22512.215
over 80%8.5198.51917.012
total21.81019.21141.14
Central Pre-Alps0-20%0.41000.7711.158
21-40%1.4500.7712.241
41-60%3.6319.31912.916
61-80%16.51420.81237.38
over 80%22.61118.61341.27
total44.5750.2694.72
Eastern Pre-Alps0-20%0.41000.41000.771
21-40%1.1571.1582.141
41-60%2.9353.9296.822
61-80%9.3198.22017.513
over 80%21.11120.71141.86
total34.6834.3868.93
Northwestern Alps0-20%1.4500.41001.844
21-40%1.8441.1572.935
41-60%5.0264.3289.318
61-80%9.3187.92017.113
over 80%14.6149.01923.610
total32.1822.51154.74
Central Alps0-20%..0.31000.3100
21-40%0.31000.7701.057
41-60%1.4493.2334.527
61-80%2.1403.1325.224
over 80%7.2203.82911.015
total11.01511.11522.18
Northeastern Alps0-20%0.4100..0.4100
21-40%0.7711.8442.537
41-60%2.5371.1573.631
61-80%4.7262.1406.821
over 80%9.3176.12215.412
total17.61111.11528.76
Southwestern Alps0-20%0.31000.31000.771
21-40%2.4383.5315.924
41-60%18.2137.62125.710
61-80%24.01110.01834.09
over 80%18.2139.31927.410
total63.1530.6993.73
Southeastern Alps0-20%..0.41000.4100
21-40%4.6276.02410.518
41-60%20.41218.61339.08
61-80%19.31326.01145.47
over 80%10.91712.91623.811
total55.2663.96119.03
Southern Alps0-20%1.158..1.158
21-40%1.8450.41002.141
41-60%7.5214.62712.117
61-80%26.9117.12234.09
over 80%55.6714.51570.05
total92.8426.511119.33
Switzerland0-20%4.3298.32112.617
21-40%15.91523.51239.49
41-60%66.5781.96148.35
61-80%125.95178.14303.93
over 80%192.44367.32559.62
total404.92659.011063.91

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162951/149330

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · biogeographical region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track30.26.339.76.216.81.713.32.615.93.33.81.215.11.1
road and skidding road45.36.833.35.911.31.54.21.60.80.86.81.511.00.9
road and cable line11.34.415.94.652.62.341.83.859.24.531.92.943.01.4
road and flight path3.82.6..8.41.335.83.724.23.947.83.122.41.2
no access intended9.44.011.14.010.91.44.81.7..9.81.88.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track53.02.371.91.822.02.126.84.927.33.65.22.547.51.1
road and skidding road36.72.217.61.59.81.58.53.19.12.315.24.019.60.9
road and cable line5.31.02.70.635.02.424.54.841.04.030.85.215.80.8
road and flight path0.20.20.20.210.01.540.25.421.93.329.55.27.10.6
no access intended4.91.07.61.023.22.1..0.70.619.34.59.90.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track50.72.269.11.719.21.317.82.422.32.54.11.135.20.8
road and skidding road37.52.118.91.510.61.05.71.55.51.48.71.516.30.7
road and cable line5.91.03.90.744.51.736.03.149.03.031.72.526.20.7
road and flight path0.60.30.10.19.11.037.33.122.92.543.62.712.90.6
no access intended5.31.07.91.016.61.23.21.10.40.411.91.89.40.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162952/149331

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · biogeographical region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
biogeographical region
JuraPlateauNorthern AlpsWestern Central-AlpsEastern Central-AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track5.8258.82028.4117.5216.7223.63160.97
road and skidding road8.6207.42219.2132.4370.41006.42344.49
road and cable line2.2413.53189.0623.61125.11130.210173.64
road and flight path0.771..14.21620.21210.21845.2890.66
no access intended1.8452.53818.4142.735..9.31934.710
total19.11322.312169.2356.5642.4794.74404.12
outside perimeterroad and skidding track90.15166.6332.0107.52114.8151.450312.53
road and skidding road62.3640.7914.2162.4374.9264.229128.75
road and cable line9.0206.42350.986.92222.3128.520104.06
road and flight path0.41000.410014.51511.31711.9178.22046.68
no access intended8.32017.71433.710..0.41005.42565.47
total170.12231.62145.3428.11054.3627.710657.21
totalroad and skidding track95.85175.4360.4715.11421.6125.026373.32
road and skidding road71.0648.1833.4104.8265.32510.618173.14
road and cable line11.2179.919139.9430.5947.4738.88277.63
road and flight path1.1580.410028.71131.5922.11253.47137.25
no access intended10.11820.21352.182.7350.410014.615100.16
total189.11253.91314.6284.6496.73122.431061.31

calculated by unit of reference: biogeographical region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162953/149332

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · canton
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonconcept of transportation system %± %± %±
AGroad and skidding track..61.24.461.24.4
road and skidding road..32.24.332.24.3
road and cable line......
road and flight path......
no access intended..6.62.36.62.3
total..100.0.100.0.
AIroad and skidding track44.416.983.315.460.012.9
road and skidding road22.214.2..13.39.0
road and cable line22.214.216.715.620.010.6
road and flight path11.110.8..6.76.6
no access intended......
total100.0.100.0.100.0.
ARroad and skidding track71.417.261.111.664.09.6
road and skidding road..22.210.016.07.5
road and cable line28.617.416.79.020.08.2
road and flight path......
no access intended......
total100.0.100.0.100.0.
BEroad and skidding track19.12.949.42.938.02.2
road and skidding road20.83.021.62.421.31.9
road and cable line47.23.720.62.430.62.1
road and flight path2.81.21.70.82.10.7
no access intended10.12.36.71.58.01.2
total100.0.100.0.100.0.
BL/BSroad and skidding track50.025.258.47.557.77.2
road and skidding road50.025.232.37.233.87.0
road and cable line..7.03.96.43.6
road and flight path......
no access intended..2.32.32.12.1
total100.0.100.0.100.0.
FRroad and skidding track23.86.657.46.044.64.7
road and skidding road14.25.411.83.912.73.2
road and cable line45.37.714.64.326.34.2
road and flight path......
no access intended16.75.816.24.516.43.5
total100.0.100.0.100.0.
GEroad and skidding track..100.0.100.0.
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..100.0.100.0.
GLroad and skidding track......
road and skidding road......
road and cable line68.410.768.210.068.37.3
road and flight path10.57.113.67.412.25.2
no access intended21.19.418.28.319.56.2
total100.0.100.0.100.0.
GRroad and skidding track15.92.529.63.222.62.1
road and skidding road1.40.88.01.94.71.0
road and cable line58.63.440.13.549.62.5
road and flight path22.12.919.82.821.02.0
no access intended1.91.02.51.12.20.7
total100.0.100.0.100.0.
JUroad and skidding track28.69.948.66.243.75.3
road and skidding road57.110.846.96.249.45.4
road and cable line4.84.7..1.21.2
road and flight path......
no access intended9.56.44.62.65.82.5
total100.0.100.0.100.0.
LUroad and skidding track14.37.726.84.324.73.9
road and skidding road..12.53.210.42.7
road and cable line33.310.34.82.19.62.6
road and flight path......
no access intended52.410.955.94.955.34.5
total100.0.100.0.100.0.
NEroad and skidding track20.018.053.75.651.85.5
road and skidding road60.022.041.35.542.45.4
road and cable line......
road and flight path......
no access intended20.018.05.02.45.92.6
total100.0.100.0.100.0.
NWroad and skidding track16.715.5..5.95.8
road and skidding road..9.18.95.95.8
road and cable line33.319.645.515.341.212.2
road and flight path16.715.59.18.911.88.0
no access intended33.319.636.414.835.311.8
total100.0.100.0.100.0.
OWroad and skidding track..3.63.62.02.0
road and skidding road8.75.910.75.99.84.2
road and cable line52.210.549.89.550.97.1
road and flight path26.19.214.36.719.65.6
no access intended13.07.121.57.817.75.4
total100.0.100.0.100.0.
SGroad and skidding track33.35.548.46.440.14.2
road and skidding road20.04.617.84.919.03.4
road and cable line37.35.614.54.527.03.8
road and flight path9.33.417.84.913.12.9
no access intended..1.61.60.70.7
total100.0.100.0.100.0.
SHroad and skidding track..83.36.083.36.0
road and skidding road..13.95.813.95.8
road and cable line..2.82.82.82.8
road and flight path......
no access intended......
total..100.0.100.0.
SOroad and skidding track25.021.857.05.655.45.5
road and skidding road50.025.130.45.231.35.1
road and cable line..10.13.49.63.3
road and flight path......
no access intended25.021.82.51.83.62.1
total100.0.100.0.100.0.
SZroad and skidding track2.82.85.73.94.22.4
road and skidding road19.56.68.64.814.14.2
road and cable line55.58.320.06.838.05.8
road and flight path2.82.85.73.94.22.4
no access intended19.46.660.08.339.45.8
total100.0.100.0.100.0.
TGroad and skidding track60.015.690.03.985.84.2
road and skidding road30.014.610.03.912.84.0
road and cable line10.09.5..1.41.4
road and flight path......
no access intended......
total100.0.100.0.100.0.
TIroad and skidding track2.81.11.81.72.61.0
road and skidding road7.61.819.15.210.01.8
road and cable line25.13.024.65.725.02.6
road and flight path54.03.435.26.350.03.1
no access intended10.42.119.45.312.32.0
total100.0.100.0.100.0.
URroad and skidding track4.14.110.47.06.93.9
road and skidding road4.74.611.17.47.64.2
road and cable line62.19.931.810.848.77.7
road and flight path24.98.920.79.323.06.4
no access intended4.14.125.910.113.85.3
total100.0.100.0.100.0.
VDroad and skidding track8.84.255.23.546.73.2
road and skidding road6.73.723.93.020.82.6
road and cable line51.37.57.01.815.12.3
road and flight path17.75.74.51.56.91.6
no access intended15.65.49.52.110.62.0
total100.0.100.0.100.0.
VSroad and skidding track14.12.629.24.819.02.4
road and skidding road4.91.69.03.06.21.5
road and cable line44.03.723.74.537.42.9
road and flight path32.63.538.25.234.42.9
no access intended4.31.5..2.91.0
total100.0.100.0.100.0.
ZGroad and skidding track33.316.275.022.446.214.3
road and skidding road11.110.825.022.415.410.4
road and cable line55.617.0..38.513.9
road and flight path......
no access intended......
total100.0.100.0.100.0.
ZHroad and skidding track..76.43.674.83.6
road and skidding road33.327.311.42.711.92.7
road and cable line66.727.311.42.712.62.8
road and flight path......
no access intended..0.70.70.70.7
total100.0.100.0.100.0.
Switzerlandroad and skidding track14.91.047.61.135.20.8
road and skidding road11.00.919.80.916.50.7
road and cable line43.01.415.70.826.10.8
road and flight path22.51.27.10.612.90.6
no access intended8.60.89.70.69.30.5
total100.0.100.0.100.0.

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162954/149333

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · canton
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
cantonconcept of transportation system1000 ha± %1000 ha± %1000 ha± %
AGroad and skidding track..29.8829.88
road and skidding road..15.71315.713
road and cable line......
road and flight path......
no access intended..3.2343.234
total..48.7248.72
AIroad and skidding track1.3451.6392.924
road and skidding road0.669..0.669
road and cable line0.6690.31001.054
road and flight path0.3100..0.3100
no access intended......
total2.9241.9344.811
ARroad and skidding track1.6413.5235.116
road and skidding road..1.3471.347
road and cable line0.6691.0551.641
road and flight path......
no access intended......
total2.2335.8148.05
BEroad and skidding track11.61750.0761.76
road and skidding road12.71621.91234.59
road and cable line28.81020.91249.67
road and flight path1.7451.7453.431
no access intended6.2236.82213.016
total60.96101.34162.32
BL/BSroad and skidding track0.87010.21511.014
road and skidding road0.8705.6246.422
road and cable line..1.2571.257
road and flight path......
no access intended..0.41000.4100
total1.64917.5819.16
FRroad and skidding track3.73014.61318.311
road and skidding road2.2403.0345.225
road and cable line7.1213.73110.816
road and flight path......
no access intended2.6374.1296.722
total15.71325.4841.13
GEroad and skidding track..2.2342.234
road and skidding road......
road and cable line......
road and flight path......
no access intended......
total..2.2342.234
GLroad and skidding track......
road and skidding road......
road and cable line5.0245.82210.813
road and flight path0.8701.2571.943
no access intended1.5491.5493.133
total7.3198.51715.88
GRroad and skidding track11.51720.61232.110
road and skidding road1.0585.6256.623
road and cable line42.6827.91070.56
road and flight path16.11413.81529.910
no access intended1.4501.7453.133
total72.6569.76142.33
JUroad and skidding track2.34012.51414.812
road and skidding road4.72712.01516.711
road and cable line0.4100..0.4100
road and flight path......
no access intended0.8701.2571.944
total8.21925.7733.93
LUroad and skidding track0.9578.8179.716
road and skidding road..4.1264.126
road and cable line2.2371.6443.828
road and flight path......
no access intended3.52918.31021.89
total6.62032.8539.33
NEroad and skidding track0.310013.81214.211
road and skidding road1.05710.61411.613
road and cable line......
road and flight path......
no access intended0.31001.3491.644
total1.64425.8527.44
NWroad and skidding track0.4100..0.4100
road and skidding road..0.41000.4100
road and cable line0.8691.9402.732
road and flight path0.41000.41000.869
no access intended0.8691.5462.336
total2.3364.2226.513
OWroad and skidding track..0.41000.4100
road and skidding road0.7701.1571.943
road and cable line4.5265.2249.715
road and flight path2.2391.5493.729
no access intended1.1572.2393.431
total8.61610.41419.04
SGroad and skidding track9.01910.81719.911
road and skidding road5.4254.0299.418
road and cable line10.1183.23313.415
road and flight path2.5374.0296.522
no access intended..0.41000.4100
total27.1922.41049.54
SHroad and skidding track..10.7810.78
road and skidding road..1.8421.842
road and cable line..0.41000.4100
road and flight path......
no access intended......
total..12.8312.83
SOroad and skidding track0.410017.01117.410
road and skidding road0.8709.1189.817
road and cable line..3.0343.034
road and flight path......
no access intended0.41000.8701.157
total1.54929.9431.44
SZroad and skidding track0.41000.7701.157
road and skidding road2.5371.1573.630
road and cable line7.2202.5369.816
road and flight path0.41000.7701.157
no access intended2.5367.61910.116
total13.01312.71325.75
TGroad and skidding track1.83916.2818.06
road and skidding road0.9571.8392.731
road and cable line0.3100..0.3100
road and flight path......
no access intended......
total3.03018.0621.04
TIroad and skidding track2.1410.41002.537
road and skidding road5.7243.9309.619
road and cable line18.9135.02624.011
road and flight path40.887.22248.07
no access intended7.9214.03011.817
total75.5520.41295.94
URroad and skidding track0.31000.7701.057
road and skidding road0.41000.7711.158
road and cable line5.0232.0407.019
road and flight path2.0391.3493.330
no access intended0.31001.7442.039
total8.0176.42114.311
VDroad and skidding track1.55042.0843.57
road and skidding road1.15818.21319.413
road and cable line8.7205.32614.115
road and flight path3.0353.4336.424
no access intended2.7377.2229.919
total17.11476.2493.23
VSroad and skidding track8.9198.91917.813
road and skidding road3.1332.7355.824
road and cable line27.8107.22135.09
road and flight path20.61211.71632.39
no access intended2.735..2.735
total63.1530.6993.73
ZGroad and skidding track1.3531.3532.632
road and skidding road0.41000.41000.968
road and cable line2.137..2.137
road and flight path......
no access intended......
total3.9211.7445.69
ZHroad and skidding track..37.7537.75
road and skidding road0.41005.6246.023
road and cable line0.7705.6246.322
road and flight path......
no access intended..0.41000.4100
total1.15749.3250.42
Switzerlandroad and skidding track60.37314.53374.82
road and skidding road44.59130.75175.24
road and cable line173.54103.96277.43
road and flight path90.8646.98137.64
no access intended34.71064.3799.05
total403.82660.211064.01

calculated by unit of reference: canton

© WSL, Swiss National Forest Inventory, 03.11.2014 #162955/149334

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %±
inside perimeterroad and skidding track29.66.241.78.222.92.513.31.53.41.115.11.1
road and skidding road44.46.836.18.017.12.34.50.96.51.511.10.9
road and cable line11.14.38.34.641.42.955.42.231.72.942.81.4
road and flight path3.72.6..6.41.521.51.848.53.122.41.2
no access intended11.14.313.95.812.12.05.31.09.91.88.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track53.72.372.71.828.12.723.92.12.71.947.61.1
road and skidding road35.92.216.91.514.92.17.61.315.84.219.70.9
road and cable line4.61.03.50.724.32.539.32.532.05.415.70.8
road and flight path0.20.20.20.25.91.423.22.129.45.37.10.6
no access intended5.61.06.71.026.72.66.01.220.14.610.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track51.32.271.01.825.51.817.91.33.31.035.20.8
road and skidding road36.82.118.01.516.01.55.80.88.61.516.40.7
road and cable line5.21.03.70.732.72.048.41.731.72.526.00.7
road and flight path0.60.30.20.26.21.022.21.444.22.712.90.6
no access intended6.21.07.11.019.51.75.60.812.21.89.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162956/149335

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · production region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
production region
JuraPlateauPre-AlpsAlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track5.8255.32623.11223.6123.23360.97
road and skidding road8.8204.62717.3148.0216.02444.69
road and cable line2.2411.15841.8898.2529.410172.64
road and flight path0.771..6.52338.0945.0890.26
no access intended2.2411.84512.3179.3199.21934.710
total19.71312.716100.95177.0392.84403.12
outside perimeterroad and skidding track94.55155.3329.21032.9100.771312.72
road and skidding road63.2636.2915.51510.4184.229129.45
road and cable line8.0217.42225.21154.188.520103.26
road and flight path0.41000.41006.12431.9107.82146.68
no access intended9.91914.41527.8118.3205.32565.67
total176.02213.62103.84137.6426.511657.51
totalroad and skidding track100.44160.6352.3756.473.930373.62
road and skidding road71.9640.7832.81018.41310.218174.04
road and cable line10.2188.42067.06152.2437.99275.83
road and flight path1.1580.410012.61670.0652.87136.85
no access intended12.01716.21440.0917.61414.515100.46
total195.71226.31204.72314.62119.331060.61

calculated by unit of reference: production region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162957/149336

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system %± %± %± %± %± %± %±
inside perimeterroad and skidding track34.45.013.92.121.63.114.12.619.13.13.41.115.11.1
road and skidding road41.15.212.82.014.02.64.91.61.30.96.51.511.00.9
road and cable line10.03.251.63.048.23.844.03.758.63.931.72.942.91.5
road and flight path2.21.66.61.59.52.232.63.521.03.348.53.122.41.2
no access intended12.23.515.02.26.71.94.31.5..9.91.88.60.8
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
outside perimeterroad and skidding track64.31.518.02.428.83.629.24.831.93.52.71.947.61.1
road and skidding road25.31.313.32.110.12.49.03.08.32.015.84.219.60.9
road and cable line3.90.634.53.029.83.623.74.538.63.632.05.415.80.8
road and flight path0.20.17.11.611.92.638.25.220.73.029.45.37.10.6
no access intended6.20.727.12.819.43.1..0.60.520.14.610.00.7
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.
totalroad and skidding track62.01.415.91.625.02.419.02.426.02.43.31.035.20.8
road and skidding road26.51.313.11.512.21.86.21.55.01.28.61.516.30.7
road and cable line4.40.643.42.239.52.737.42.947.82.731.72.526.10.7
road and flight path0.30.26.81.110.61.734.42.920.92.244.22.712.90.6
no access intended6.70.720.81.812.71.82.91.00.30.312.21.89.50.5
total100.0.100.0.100.0.100.0.100.0.100.0.100.0.

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162958/149337

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · protection forest region
unit: 1000 ha
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
protection forest region
Jura + PlateauNorthwestern AlpsNortheastern AlpsSouthwestern AlpsSoutheastern AlpsSouthern AlpsSwitzerland
processes in channels SilvaProtect, modelled and assignedconcept of transportation system1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %1000 ha± %
inside perimeterroad and skidding track11.11813.71613.3168.91910.6183.23360.77
road and skidding road13.21612.6168.7203.1330.7716.02444.39
road and cable line3.23350.8729.71027.81032.3929.410173.24
road and flight path0.7716.5235.92420.61211.61745.0890.26
no access intended3.93014.8154.1282.735..9.21934.810
total32.21098.4561.6663.1555.2692.84403.32
outside perimeterroad and skidding track250.7316.61415.9148.91920.4120.771313.23
road and skidding road98.7512.3175.5252.7355.3254.229128.75
road and cable line15.41531.71016.4147.22124.6118.520103.96
road and flight path0.7716.5236.62211.71613.2167.82146.58
no access intended24.31224.91110.717..0.41005.32565.67
total389.9192.0555.0630.6963.9626.511657.91
totalroad and skidding track261.8230.31029.21017.81330.9103.930374.02
road and skidding road112.0524.91114.2155.8246.02410.218173.04
road and cable line18.61482.6546.1735.0956.9637.99277.13
road and flight path1.45013.01612.41632.3924.81152.87136.75
no access intended28.31139.7914.8142.7350.410014.515100.46
total422.11190.42116.7393.73119.03119.331061.21

calculated by unit of reference: protection forest region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162959/149338

NFI4b

forest area: processes in channels SilvaProtect, modelled and assigned · concept of transportation system · economic region
unit: %
unit of evaluation: accessible forest excluding shrub forest NFI1/NFI2/NFI3/NFI4 combined
grid:
state 2009/13
processes in channels SilvaProtect, modelled and assigned
inside perimeteroutside perimetertotal
economic regionconcept of transportation system %± %± %±
Western Juraroad and skidding track28.06.451.52.648.72.5
road and skidding road44.07.036.82.537.62.4
road and cable line12.04.64.91.15.71.1
road and flight path4.02.80.30.30.70.4
no access intended12.04.66.51.37.21.3
total100.0.100.0.100.0.
Eastern Juraroad and skidding track50.025.160.94.560.64.4
road and skidding road50.025.133.04.433.54.3
road and cable line..3.51.73.41.7
road and flight path......
no access intended..2.61.52.51.4
total100.0.100.0.100.0.
Western Plateauroad and skidding track49.315.974.24.372.04.2
road and skidding road30.414.717.23.718.43.6
road and cable line..1.01.00.90.9
road and flight path......
no access intended20.312.87.72.68.72.6
total100.0.100.0.100.0.
Central Plateauroad and skidding track25.012.566.03.363.83.2
road and skidding road41.714.318.12.719.42.7
road and cable line8.38.03.31.23.61.3
road and flight path......
no access intended25.012.512.52.313.22.3
total100.0.100.0.100.0.
Eastern Plateauroad and skidding track50.013.476.92.575.72.4
road and skidding road35.712.816.02.116.92.1
road and cable line14.39.44.41.24.91.2
road and flight path..0.30.30.30.3
no access intended..2.40.92.30.9
total100.0.100.0.100.0.
Western Pre-Alpsroad and skidding track23.85.638.46.830.64.4
road and skidding road10.13.95.83.38.12.6
road and cable line47.56.532.76.540.54.7
road and flight path3.42.47.73.75.42.2
no access intended15.34.715.45.015.33.4
total100.0.100.0.100.0.
Central Pre-Alpsroad and skidding track15.33.212.12.813.62.1
road and skidding road19.43.619.33.319.32.4
road and cable line41.94.425.73.733.32.9
road and flight path7.32.33.61.65.31.4
no access intended16.13.339.34.128.42.8
total100.0.100.0.100.0.
Eastern Pre-Alpsroad and skidding track32.04.745.85.138.93.5
road and skidding road18.64.013.53.516.12.6
road and cable line37.14.917.73.927.53.2
road and flight path7.22.68.32.87.81.9
no access intended5.22.214.63.69.82.1
total100.0.100.0.100.0.
Northwestern Alpsroad and skidding track5.62.414.34.49.22.3
road and skidding road5.62.46.43.15.91.9
road and cable line67.84.955.56.362.73.9
road and flight path7.82.814.34.410.52.5
no access intended13.33.69.53.711.82.6
total100.0.100.0.100.0.
Central Alpsroad and skidding track3.13.16.24.34.72.6
road and skidding road6.54.46.54.46.53.1
road and cable line62.38.634.58.448.46.3
road and flight path18.76.915.56.417.14.7
no access intended9.45.237.38.623.35.3
total100.0.100.0.100.0.
Northeastern Alpsroad and skidding track12.34.7..7.53.0
road and skidding road10.24.33.23.27.53.0
road and cable line61.27.061.38.861.35.5
road and flight path8.23.919.47.112.53.7
no access intended8.23.916.16.611.23.5
total100.0.100.0.100.0.
Southwestern Alpsroad and skidding track14.12.629.24.819.02.4
road and skidding road4.91.69.03.06.21.5
road and cable line44.03.723.74.537.42.9
road and flight path32.63.538.25.234.42.9
no access intended4.31.5..2.91.0
total100.0.100.0.100.0.
Southeastern Alpsroad and skidding track19.13.131.93.526.02.4
road and skidding road1.30.98.32.05.01.2
road and cable line58.63.938.63.647.82.7
road and flight path21.03.320.73.020.92.2
no access intended..0.60.50.30.3
total100.0.100.0.100.0.
Southern Alpsroad and skidding track3.41.12.71.93.31.0
road and skidding road6.51.515.84.28.61.5
road and cable line31.72.932.05.431.72.5
road and flight path48.53.129.45.344.22.7
no access intended9.91.820.14.612.21.8
total100.0.100.0.100.0.
Switzerlandroad and skidding track15.11.047.61.135.30.8
road and skidding road11.00.919.60.916.30.7
road and cable line42.91.415.80.826.10.7
road and flight path22.31.27.10.612.90.6
no access intended8.60.89.90.79.40.5
total100.0.100.0.100.0.

calculated by unit of reference: economic region

© WSL, Swiss National Forest Inventory, 03.11.2014 #162960/149339
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